APA (7th ed.) Citation

Look, L., & Heo, Y. (2011). Polka Dot Penguin Pottery. Schwartz & Wade Books.

Chicago Style (17th ed.) Citation

Look, Lenore, and Yumi Heo. Polka Dot Penguin Pottery. New York: Schwartz & Wade Books, 2011.

MLA (8th ed.) Citation

Look, Lenore, and Yumi Heo. Polka Dot Penguin Pottery. Schwartz & Wade Books, 2011.

Warning: These citations may not always be 100% accurate.